Install
Tools
Graph databases & knowledge graphs
10 tools compared: how each is priced, where it runs, and what to consider instead.
| Tool | Pricing model | Free tier | Open source |
|---|---|---|---|
| Amazon Neptune Fully managed AWS graph database supporting both property-graph (Gremlin, openCypher) and RDF (SPARQL) query models. | Usage-based | No | No |
| ArangoDB Multi-model database combining graph, document and key/value storage under one engine and one query language, AQL. | Quote only | Yes | No |
| Dgraph Open-source, natively distributed property-graph database with a GraphQL-derived query language, now stewarded by Hypermode. | Open source + paid | Yes | Yes |
| JanusGraph Open-source distributed property-graph database queried with Gremlin, with pluggable storage and indexing backends. | Open source + paid | Yes | Yes |
| Memgraph In-memory, Cypher-compatible property-graph database built in C++ for low-latency graph analytics and GraphRAG. | Free tier + paid | Yes | No |
| NebulaGraph Open-source distributed property-graph database using nGQL, built for billion-edge-scale graphs at low latency. | Free tier + paid | Yes | Yes |
| Neo4j Native property-graph database using Cypher, the language behind the new ISO GQL standard, for relationship-heavy analytics. | Free tier + paid | Yes | No |
| Ontotext GraphDB RDF4J-compliant semantic graph database using SPARQL with OWL/RDFS reasoning, built for enterprise knowledge graphs. | Free tier + paid | Yes | No |
| Stardog Enterprise RDF knowledge-graph platform using SPARQL, with OWL/RDFS reasoning and federation over relational sources. | Free tier + paid | Yes | No |
| TigerGraph Massively parallel native graph database with its own GSQL language, built for deep multi-hop analytics at scale. | Usage-based | Yes | No |